OK, I challenge the entire list on the matter. Does anyone here actually find or believe that wider lenses are just as easy to focus as 3X longer lenses at the same fstop? I have never found this to be the case with many many lenses and many many cameras of all types and sizes over the years. About 30 years of experience, and always with any given finder, its the lens properties that make the difference, not the finders.
Simple proof is with zooms, the camera makers themselves even tell you to focus at longest setting and then zoom to length you want because its easier to focus accurately at longer lengths ( given same fstop/speed and a quality zoom which holds focus during zooming like it should ). I have found this to be very true. Anyone like to challange that technique and argument too? jco -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of cbwaters Sent: Friday, November 10, 2006 3:33 PM To: Pentax-Discuss Mail List Subject: Re: Using a Super Tak w/ istDS But Shel, can't you see you're wrong? It makes no difference if you're *actually* wrong or not, you just ARE wrong. Reading this goofy argument is like arguing with my wife... CW ----- Original Message ----- From: "Shel Belinkoff" <[EMAIL PROTECTED]> To: "Pentax-Discuss Mail List" <[email protected]> Sent: Friday, November 10, 2006 3:26 PM Subject: RE: Using a Super Tak w/ istDS > Yes, for me, on the istDS, the ease of focus is similar at equal > f-stops. I am not trying to say this, I am saying it. Try it yourself > and see what your experience is. > > Many modern finders and screens are brighter than many older finders > and screens. While i don't know the physics of it, I believe it has > something to do with channeling a given amount of light through a > smaller viewfinder, something, perhaps, akin to looking at a scene > normally and then through a toilet paper roll core. When looking > through the TP roll core, things appear more contrasty and sharper. > Perhaps someone who knows how to better > explain the physics of all this will jump in at some point. All I can do > is > tel you what my experience is. > > Shel > > > >> [Original Message] >> From: J. C. O'Connell > >> Are you trying to say a 35mm f3.5 lens is >> as easy to focus as a 105mm f3.5 lens? If >> you are I strongly disagree and it has nothing >> to do with the finder ( at least general purpose >> finders like the ones found in most SLR/DSLRS ). >> Newer cameras dont have magic finders that >> change the laws of physics... > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.409 / Virus Database: 268.14.1/527 - Release Date: 11/9/2006 > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
